Does Kbin move all the Fediverse Magazines / Community posts across?
So I seem to have found smaller Magazines / Communities that haven't been on Kbin before and after finding them they seem to have no posts but after looking through Lemmy it seems they do have posts. Does it take time for Lemmy to add all the posts or is it only new posts that will come across?
The way posts are shared between instances is by user subscription. For example, if there's a community on Lemmy and a Kbin user subscribes to it, Kbin will then receive new posts from that Lemmy instance for that community.
So if no one on an instance is subscribed to that community, new posts won't flow to that instance. And then if you do subscribe to it, the instance will only automatically receive new posts. Federation will not back-fill older content.